XC9237E3MCER-G

Voltage Regulators - DC DC Switching Regulators Overview

The XC9237E3MCER-G is a synchronous step-down DC/DC converter from the XC9237 series by Torex Semiconductor. It integrates high-speed PWM control and a built-in driver transistor with an on-resistance of 0.42Ω. The device supports an input voltage range of 2V to 6V and delivers a fixed output voltage of 1.8V at up to 600mA. Operating at a switching frequency of 3MHz, it achieves low quiescent current. The component is housed in a compact 6-UFDFN package with an exposed pad for thermal management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-speed PWM controller with a built-in driver transistor for efficient synchronous rectification
• Supports wide input voltage ranges suitable for single-cell lithium-ion battery applications
• Features a compact footprint designed for space-constrained portable electronic devices

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring stable power from single-cell batteries
• Battery-powered consumer devices needing efficient step-down conversion
• Embedded systems utilizing compact surface-mount power management solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific output voltage suffix against official datasheets to ensure compatibility with target circuit requirements. Confirm package integrity and lead marking accuracy upon receipt. Cross-reference part numbers with manufacturer documentation to avoid substitution errors. Ensure storage conditions meet specified humidity and temperature limits to maintain component reliability before assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.8V output is required from a 2V to 6V input source. The 3MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Verify that the load current does not exceed the 600mA limit. Consider thermal performance due to the integrated driver resistance and small package size during PCB layout planning.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the XC9235/XC9236/XC9237 series of 600mA synchronous step-down converters. The XC9237 variant specifically utilizes a higher 3MHz switching frequency compared to the 1.2MHz used in the XC9235 and XC9236 series. This series shares common architectural features including built-in driver transistors and low standby current characteristics optimized for portable applications.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum switching frequency for the XC9237 series?

The XC9237 series operates at a fixed switching frequency of 3MHz.

Does the XC9237E3MCER-G include internal feedback resistors?

Yes, the device includes built-in feedback resistors to set the fixed output voltage, reducing the need for external components.